Move plugin files to a subfolder

[MAILPOET-3988]

mailpoet/lib/Cron/Workers/KeyCheck/SendingServiceKeyCheck.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace MailPoet\Cron\Workers\KeyCheck;
+
+use MailPoet\Config\ServicesChecker;
+use MailPoet\Cron\CronWorkerScheduler;
+use MailPoet\Mailer\Mailer;
+use MailPoet\Mailer\MailerLog;
+use MailPoet\Services\Bridge;
+use MailPoet\Settings\SettingsController;
+use MailPoetVendor\Carbon\Carbon;
+
+class SendingServiceKeyCheck extends KeyCheckWorker {
+  const TASK_TYPE = 'sending_service_key_check';
+
+  /** @var SettingsController */
+  private $settings;
+
+  /** @var ServicesChecker */
+  private $servicesChecker;
+
+  public function __construct(
+    SettingsController $settings,
+    ServicesChecker $servicesChecker,
+    CronWorkerScheduler $cronWorkerScheduler
+  ) {
+    $this->settings = $settings;
+    $this->servicesChecker = $servicesChecker;
+    parent::__construct($cronWorkerScheduler);
+  }
+
+  public function checkProcessingRequirements() {
+    return Bridge::isMPSendingServiceEnabled();
+  }
+
+  /**
+   * @return \DateTimeInterface|Carbon
+   */
+  public function getNextRunDate() {
+    // when key pending approval, check key sate every hour
+    if ($this->servicesChecker->isMailPoetAPIKeyPendingApproval()) {
+      $date = Carbon::createFromTimestamp($this->wp->currentTime('timestamp'));
+      return $date->addHour();
+    }
+    return parent::getNextRunDate();
+  }
+
+  public function checkKey() {
+    $wasPendingApproval = $this->servicesChecker->isMailPoetAPIKeyPendingApproval();
+
+    $mssKey = $this->settings->get(Mailer::MAILER_CONFIG_SETTING_NAME)['mailpoet_api_key'];
+    $result = $this->bridge->checkMSSKey($mssKey);
+    $this->bridge->storeMSSKeyAndState($mssKey, $result);
+
+    $isPendingApproval = $this->servicesChecker->isMailPoetAPIKeyPendingApproval();
+    if ($wasPendingApproval && !$isPendingApproval) {
+      MailerLog::resumeSending();
+    }
+    return $result;
+  }
+}